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A car starts from rest and travels for 4.7 s with a uniform acceleration of +1.9 m/s2. The driver then applies the brakes, causing a uniform acceleration of -2.0 m/s2. The breaks are applied for 2.00 s.
(a) How fast is the car going at the end of the braking period?
(b) How far has the car gone from its start?
An automobile travels on a straight road for 40.0 km [E] at 30.0 (km/h). It then continues in the same direction for another 40.0 km [E] at 60 (km/h). Estimate the average speed, distance, displacement, & average velocity for the trip.
A particle of mass m is constrained to move between two concentric impermeable spheres of radii r = a and r = b (a
q1. a vertical electric field of magnitude 3.00 multiplied by 104 nc exists above the earths surface on a day when a
Assume that the blocks accelerate as shown with an acceleration of magnitude = 0.250 and that the coefficient of kinetic friction between block 2 and the plane is = 0.400. Find out the mass of block 2, , when = 30.0.
A plane wave of monochromatic light is incident normally on a uniformly thin film of oil that covers a glass plate. find the thickness of the oil film
A bungee cord is stretched between two poles with a force of 407 N. What is the velocity of a wave on this bungee cord
It collides with a 10,000 kg railway car resting at the bottom of the track with its brakes off. The two cars couple together and roll up the track to a height of h. find out h.
A container of volume V is divided by partitions into three parts containing one kilomole of helium gas, Calculate the kilomole fraction
When its coil rotates at a frequency of 258 Hz, a certain generator has a peak emf of 72 V. What is the peak emf of the generator
The steel I-beam in the drawing has a weight of 1.50 × 103 N and is being lifted at a constant velocity. What is the tension in each cable attached to its ends
The position vector of a particle of mass 2.10 kg as a function of time is given by rarrowbold = (6.00 ihatbold + 4.00 t jhat bold), Determine the angular momentum of the particle
A 378 N, uniform, 1.56 m bar is suspended horizontally by two vertical cables at each end. Cable A can support a maximum tension of 502.0 N without breaking, and cable B can support up to 397.0N. You want to place a small weight on this bar. What is ..
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